Ship construction



G. MAGNUSUN.

SHIP CONSTRUCTION.

APPLICATION FILED MAR.6.1919.

mmm mem @et 5,1920.

7 INVENTOR G05 TAF MGM/50M' s parent eterea.

GUSTAF MAGNUSON, OF MARBLE, COLORADO.

SHIP CONSTRUCTION.

Application led March 6, 1918.

To all whom t may concern:

Be it known that I, GUs'rAr MAGNUsoN, a citizen of the United States, residing at Marble', in the county of Gunnison and State of Colorado, have invented certain new and useful Improvements in Ship Construction, of which the following is a specification.

lli/ly invention relates to ship construction and its primary object is to provide a combination of substances and devices by which the hull of a man-of-war, or other sea-going vessel, is adapted to effectively resist torpedoes and modern artillery and in the event of leakage, is maintained in a buoyant condition.

lNith the above objects in view, my invention consists of the combination and arrangement of the substances and devices shown in the accompanying drawings in the various views of which like parts are similarly designated and in which,

Figure 1 is a transverse section through the hull of a ship constructed in accordance with my invention,

Fig. 2, an enlarged cross-sectional view of the upper portion of one of the sides of the hull shown in Fig. 1,

Fig. 3, a fragmentary section along the line 3 3, Fig. 2,

Fig. 4, a similar section taken along the line 1*4, Fig. 2, and

Fig. 5, a fragmentary section of the stern of the hull where the propeller shafts pass through the same.

Referring to the drawings by numerical reference characters the hull of a ship of my improved construction is composed of inner and outer walls 5 and 6 which are spaced apart about twenty inches above the waterline A and about five feet below the same.

The two walls are made of armor-plate of a thickness of at least one inch and the outer wall has a limited movement with relation to the other.

rllhe walls of the hull are yieldingly connected by series of sets of coiled springs placed at right angles to the contour of the hull and securely fastened at their ends to the armor-plate of which the walls are composed, and each set of springs consists of two members 7 and 8 placed separately one within the other, as best shown in Fig. 2 of the drawings.

The space 9 between the walls of the hull above the waterline, which as stated hereinbefore, is narrower than that between the Specification of Letters Patent.

Patented @et 5, i920.

Serial No. 220,886.

portions of the walls below the same, is filled with rubber as indicated at 10, which after the springs have been assembled and secured is in a melted condition poured into the space until it completely fills the same.

After the rubber filling of the space be tween the walls of the hull has cooled, it provides a resilient cushion which coperates with the springs to resist the impact vof bullets and torpedoes upon the outside of the hull, which provides water-tight closure in case the outer wall of the hull is punctured, and which moreover provides a protective covering for the inner wall of the hull, well adapted to resist the projectiles in case they penetrate the outer wall.

The outer wall of the hull is beneath the water-line, lined with a layer 12 of cork or other resilient material about twelve inches thick, and the majority of the sets of springs in the lower space 13 between the walls, abut against this lining, while the others pass through the lining and engagethe armor-plate of which the outer wall is made.

interposed between the springs in the lower space 13 of the double hull, are a number of resilient props 14, preferably made of cork, which fit snugly around the springs adjacent which they are disposed and engage the inner surface of the inner wall and the cork-lining of the outer wall between which they extend.

The spaces between the springs of each. set, and the space between the walls of the hull not occupied by the props and springs, are tightly packed with feathers as shown at 15 and the entire assembly of parts and substances within the space of the hull-wall below the water-line, provides a cushion which not only absorbs the impact of projectiles fired against the outer wall, but which furthermore provides a medium well adapted to resist the passage of the projectiles after they have penetrated the outer wall of the hull, and to assist in maintaining the hull afloat in case of leakage in either one or both of its walls.

The openings at the stem of a hull of the above-described con struction, through which the propeller shafts pass, are packed with sleeves of rubber at least eight inches thick, as shown at 16 in Fig. 5 of the drawings, which pass through the walls and thus prevent the leakage of water into the space between them.

Having thus described my invention what I claim and desire to secure by Letters- Patent is l. In ship-construction7 a hull composed of spaced and relatively movable inner and outer walls, a cork lining on the inner surface of the outer wall, springs between the walls, springs between one wall and the cork lining and a resilient lilling occupying the space between the walls and around the springs.

2. In shipconstruction, a hull composed of spaced and relatively movable inner and outer walls, a cork-lining on the inner surface of the outer wall below the water line, springs between the Vwalls and between the inner wall and said lining, cork props between the walls, and a resilient filling occupying the space between the walls and around the springs and the props, said Iilling above the water line being of different composition from that below the water line.

3. In ship-construction, a hull composed of spaced and relatively movable inner and outer walls, and a illing of feathers occupying the space between the walls.

4. In a ship construction, a hull composed of spaced and relatively movable innel and outer walls, the space between said inner 'and outer walls being greater below the water line than above the same, resilient springs arranged in said space above the water line, a rubber filling surrounding said springs and filling said space, a lining of cork arranged upon the inner side of said outer wall below the water line, resilient springs arranged between said inner and outer wall below said water line, cork props interposed between .aid springs, and a illing of feathers arranged between said walls below the water line.

In testimony whereof I have aixed my signature in presence of two witnesses.

GUSTAF MAGNUSON.

IVitnesses G. J. ROLLANDET, L. RHOADES. 

